公开(公告)号：US10931488B2

公开(公告)日：2021-02-23

申请号：US14811618

申请日：2015-07-28

Applicant: Texas Instruments Incorporated

Inventor： Satish V. Uppathil ,  Nikolaus Klemmer ,  Fikret Dulger

IPC: H04B1/26 ,  H04M1/00 ,  H04L27/148 ,  H04B1/00

Abstract: A front-end receiver includes a first mixer of a first channel, a second mixer of a second channel, and a switching circuit that is configured to select the first mixer or the second mixer during a particular time period. Upon being selected, one of the first mixer or the second mixer is configured to deliver a down-converted signal that down-converts a respective RF signal of either the first or second reception channel. As the tasks of down-conversion and multiplexing are combined at the mixer level, the first and second reception channels may share a baseband circuit while being able to provide a well-balanced metrics of channel isolation, low noise figure, and linearity.

公开(公告)号：US20160043697A1

公开(公告)日：2016-02-11

申请号：US14815619

申请日：2015-07-31

Applicant: Texas Instruments Incorporated

Inventor： Satish V. Uppathil ,  Nikolaus Klemmer ,  Fikret Dulger

IPC: H03F1/22 ,  H04B1/10 ,  H04L27/38 ,  H03F3/195 ,  H03F3/45

CPC classification number: H03F1/223 ,  H03F3/195 ,  H03F3/45179 ,  H03F3/45242 ,  H03F2200/72 ,  H03F2200/75 ,  H03F2203/45024 ,  H03F2203/45306 ,  H03F2203/45392 ,  H03F2203/45481 ,  H03F2203/45631 ,  H04L27/3809

Abstract: A front-end receiver includes an amplifier that has a steady gain over a wide frequency range. The disclosed amplifier adopts an architecture in which a common-source (CS) circuit stacks against a common-gate (CG) circuit. The CG circuit provides the input impedance matching while the CS circuit boosts the amplification gain. As a result, the disclosed amplifier allows the front-end receiver to break free from a tradeoff between input impedance matching and gain boosting. Moreover, the disclosed amplifier achieves power saving and noise reduction by having the CS circuit to share the same bias current with the CG circuit.

Abstract translation: 前端接收机包括在宽频率范围内具有稳定增益的放大器。 所公开的放大器采用其中公共源（CS）电路堆叠到公共门（CG）电路的架构。 当CS电路提高放大增益时，CG电路提供输入阻抗匹配。 结果，所公开的放大器允许前端接收器摆脱输入阻抗匹配和增益提升之间的折中。 此外，所公开的放大器通过使CS电路与CG电路共享相同的偏置电流而实现功率节省和噪声降低。

公开(公告)号：US09413300B2

公开(公告)日：2016-08-09

申请号：US14815619

申请日：2015-07-31

Applicant: Texas Instruments Incorporated

Inventor： Satish V. Uppathil ,  Nikolaus Klemmer ,  Fikret Dulger

IPC: H03F1/22 ,  H04B1/10 ,  H04L27/38 ,  H03F3/195 ,  H03F3/45

CPC classification number: H03F1/223 ,  H03F3/195 ,  H03F3/45179 ,  H03F3/45242 ,  H03F2200/72 ,  H03F2200/75 ,  H03F2203/45024 ,  H03F2203/45306 ,  H03F2203/45392 ,  H03F2203/45481 ,  H03F2203/45631 ,  H04L27/3809

Abstract: A front-end receiver includes an amplifier that has a steady gain over a wide frequency range. The disclosed amplifier adopts an architecture in which a common-source (CS) circuit stacks against a common-gate (CG) circuit. The CG circuit provides the input impedance matching while the CS circuit boosts the amplification gain. As a result, the disclosed amplifier allows the front-end receiver to break free from a tradeoff between input impedance matching and gain boosting. Moreover, the disclosed amplifier achieves power saving and noise reduction by having the CS circuit to share the same bias current with the CG circuit.

Abstract translation: 前端接收机包括在宽频率范围内具有稳定增益的放大器。 所公开的放大器采用其中公共源（CS）电路堆叠到共栅（CG）电路的架构。 当CS电路提高放大增益时，CG电路提供输入阻抗匹配。 结果，所公开的放大器允许前端接收器摆脱输入阻抗匹配和增益提升之间的折中。 此外，所公开的放大器通过使CS电路与CG电路共享相同的偏置电流而实现功率节省和噪声降低。

公开(公告)号：US20160043768A1

公开(公告)日：2016-02-11

申请号：US14811618

申请日：2015-07-28

Applicant: Texas Instruments Incorporated

Inventor： Satish V. Uppathil ,  Nikolaus Klemmer ,  Fikret Dulger

IPC: H04B1/525 ,  H04L27/148 ,  H04B7/04

CPC classification number: H04L27/148 ,  H04B1/0082

Abstract: A front-end receiver includes a first mixer of a first channel, a second mixer of a second channel, and a switching circuit that is configured to select the first mixer or the second mixer during a particular time period. Upon being selected, one of the first mixer or the second mixer is configured to deliver a down-converted signal that down-converts a respective RF signal of either the first or second reception channel. As the tasks of down-conversion and multiplexing are combined at the mixer level, the first and second reception channels may share a baseband circuit while being able to provide a well-balanced metrics of channel isolation, low noise figure, and linearity.

Abstract translation: 前端接收机包括第一通道的第一混频器，第二通道的第二混频器以及被配置为在特定时间段期间选择第一混频器或第二混频器的开关电路。 在被选择时，第一混频器或第二混频器中的一个被配置为传送降频转换的信号，其降低转换第一或第二接收信道的相应RF信号。 随着下变频和多路复用的任务在混频器级别被组合，第一和第二接收信道可以共享基带电路，同时能够提供信道隔离，低噪声系数和线性度的良好平衡度量。